The present invention aims to provide a preparation expected to improve the bitter taste of an organic acid salt of vonoprazan and permit rapid dissolution of the organic acid salt of vonoprazan after administration.The present invention provides a preparation containing fine granules or granules containing (1) a core granule containing an organic acid salt of vonoprazan, (2) an intermediate layer containing the same organic acid as the organic acid forming the salt of vonoprazan in (1), or a salt thereof, and (3) a coating layer containing a water-insoluble polymer.
